why are all female champions with primary assassin all ap?
Nidalee AP, Katarina AP, Akali AP, Evelynn AP, Leblanc AP. We have no AD female primary assassins. This doesn't count irelia nor fiora and so on, because they are primary a fighter and secondary assassin.
The best male(?) AP assassin
, although she is a brusier.
Is also a quasi-assassin/skirmisher
is about as close as it gets.